Answer:
c = 9 - 17d
Step-by-step explanation:
9-c = 17d
9-c+c= 17d + c (add c to both sides)
9 = 17d + c (Simplify)
9 - 17d = 17d - 17d + c (subtract 17d from both sides)
9 - 17d = c (Simplify)
c = - 17 d + 9 is what i got